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Letterbox Security Shroud Extension Arm

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Product Information

Designed to fit into the hidden fix letterplate shroud, this letterplate shroud extension arm makes it extremely difficult for burglars to manipulate the thumbturn using wires or straps through the letterplate.  

They come available as either left or right handed, depending on which side the thumbturn is on and are designed to colour match to the letterplate shrouds.

Key fishing or letterbox fishing is a technique burglars use to get hold of your keys, purse, handbags and more without even having to enter a property! They simply push open your letterbox flaps and use a long hooked rod, similar to a fishing rod, to ´fish´ for your keys and handbags. Meaning they can then use the keys to just walk into your property and help themselves to anything they want before driving off in your car!

The UAP Hidden Fix Letterplate Restrictor Shroud will stop hands getting through your letterbox and either hooking your keys, or opening your lock. This simple but effective device is 14.5″ long and stops the inner flap opening more than 40 degrees and so stops unwanted hands being able to manoeuvre a rod inside. 

Click here to find out more about the Letterplate Restrictor Shroud - Hidden Fixing!

Letterbox Shroud Extension Arm Features:

1 Fits into the hidden fix letterplate shroud
2 Great protection against key fishing
3 Prevents the manpulation of the thumbturn 
4 Prevents rods being pushed through the letterbox
5 Available as either left or right handed
6 Various finishes available to colour match with the letterplate shroud

Letterbox Shroud Guarantee

We guarantee the letterbox shroud and finish against the following;

Surface Coating

We guarantee that the letterbox shrouds have a 5 year inland coating guarantee (defined as 25 miles from the coast or 5 miles from a highly populated industrial area) except Nanocoast finishes which have a lifetime coating guarantee subject to;

1. The letterbox shrouds are applied to a door, window frame or door, and no item of door furniture on the door, window frame or door panel are sealed or fixed using any form of silicone sealant or the like.

2. The letterbox shrouds are fixed correctly and are not scratched or damaged at any time during the installation process or thereafter.

3. The letterbox shrouds are cleaned monthly with a moist cloth and not with any form of cleaning agents.

4. No claim will be accepted for any letterbox shroud that is scratched or mutilated or fitted incorrectly.


We guarantee that the letterbox shrouds will not fail mechanically in normal use during the 5 year guarantee period subject to the conditions outlined above.

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